14243997 has 4 divisors (see below), whose sum is σ = 18992000. Its totient is φ = 9495996.

The previous prime is 14243993. The next prime is 14244007. The reversal of 14243997 is 79934241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79934241 = 3 ⋅26644747.

It is not a de Polignac number, because 14243997 - 2² = 14243993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14243993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2373997 + ... + 2374002.

It is an arithmetic number, because the mean of its divisors is an integer number (4748000).

Almost surely, 2^14243997 is an apocalyptic number.

It is an amenable number.

14243997 is a deficient number, since it is larger than the sum of its proper divisors (4748003).

14243997 is an equidigital number, since it uses as much as digits as its factorization.

14243997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4748002.

The product of its digits is 54432, while the sum is 39.

The square root of 14243997 is about 3774.1220171054. The cubic root of 14243997 is about 242.4063307772.

The spelling of 14243997 in words is "fourteen million, two hundred forty-three thousand, nine hundred ninety-seven".